Isaac II Angelos (or Angelus) (Greek: Ισαάκιος Β’ Άγγελος, Isaakios II Angelos) (September 1156 – January 1204) was Byzantine Emperor from 1185 to 1195, and again from 1203 to 1204.
His father Andronikos Dukas Angelos, a military leader in Asia Minor (c. 1122 – aft. 1185), married bef. 1155 Euphrosyne Kastamonitissa (c. 1125 – aft. 1195). Andronikos Dukas Angelos was the son of Konstantinos Angelos, Admiral of Sicily (c. 1085 – aft. July 1166, son of Manolis Angelos from Philadelphia) and Theodora Komnene (b. 15 January 1096/1097) who was the youngest daughter of Emperor Alexios I Komnenos and Eirene Doukaina. Thus, Isaac was a member of the extended imperial clan.
Read more about Isaac II Angelos: Rising By Revolt, First Reign, Second Reign, Usurpers, Historical Reputation, Family